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Ikhadi ledayinaso No. 0454 kwe-2 027

Cretornis

Igama lithetha: “chalk bird”1

Yayitya: IintlanziIzirhubuluzi ezibhabhayoiCretaceous yamvaNgokwenene ayisiyo dayinaso

Cretornis was a flying reptile that lived about 92 million years ago. It had a wingspan as wide as a bicycle is long and probably ate fish. Its fossils were found in the Czech Republic.1 3

Inyani emnandi: iipterosauri zazibhabha phezu kweedayinaso, kodwa zazingabazala bazo, hayi iidayinaso ngokwazo.

Yaphila

94 ukuya ku-90 izigidi zeminyaka eyadlulayo3

iCretaceous yamva

Iifosili zifunyenwe:

Zářecká Lhota near Choceň, Czech Republic3 1

Ububanzi bamaphiko

1.5 ukuya ku-1.6 m (4.9 ukuya ku-5.2 ft)1 2

Esona santya siphezulu

malunga ne-43 km/h (27 mph)

Ukubhabha, uqikelelo

Yaphila nini?

iTriassic

iJurassic

iCretaceous

Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Amaphiko ayo ayebanzi kangakanani?

inde njengeekati zasekhaya ezingama-3, impumlo ukuya emsileniibinokubhabha inqumle ibala lebhola ekhatywayo lonke ngemizuzwana engama-8.8

Cretornis wayemkhulu kangakanani xa ethelekiswa NAWE?

Yimathematika nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwe naphi na.

Yayikhawuleza kangakanani?

Umntu ohambayo malunga ne-5 km/h (3 mph)

Umntwana ekhwele ibhayisikile malunga ne-12 km/h (7 mph)

Cretornis malunga ne-43 km/h (27 mph)

Ihashe elibaleka ngamandla malunga ne-65 km/h (40 mph)

Ingwenkala malunga ne-100 km/h (62 mph)

izinto ezimnandi

Iinyani ezimnandi

Cretornis was first thought to be a bird, not a pterosaur. The scientist who named it, Antonín Frič, called it a 'chalk bird' because he thought it was a toothed bird like Ichthyornis.1

The fossils were found by a woman named Mrs. Tomková, who worked at a gambling table in Choceň. She told a local pharmacist, František Hlaváč, about the bones, and he collected them.1

Cretornis is the only pterosaur ever found in the Czech Republic. Its bones come from a sandstone quarry that was being used to get gravel for road repairs.1 2

The upper arm bone (humerus) of Cretornis is only 76 millimeters long, which is about the length of three fingers side by side.1

Scientists are not sure exactly what group of pterosaurs Cretornis belongs to. Some think it is an azhdarchoid, others think it is a nyctosaurid.1 2

Umfanekiso owenziwe yi-AI: Cretornis — Umfanekiso owenziwe yi-AI obonisa indlela Cretornis esenokuba wayekhangeleka ngayo, wenziwe yikhompyutha ngokwento eyaziwa zizazinzulu. Kukuqikelela nje: esona silwanyana sinokuba sasikhangeleka ngenye indlela, kwaye akukho mntu waziyo imibala yaso yokwenyani.

ubuzile

Eyona mibuzo ibuzwa kakhulu: Cretornis

?How big was Cretornis?

Its wingspan was about 1.5 to 1.6 metres (4.9 to 5.2 feet), which is as wide as a bicycle. Its upper arm bone was only 76 millimetres (3 inches) long.1 2

?What did Cretornis eat?

It probably ate fish, like many other pterosaurs that lived near the sea.1

?Is Cretornis a dinosaur?

No, Cretornis is a pterosaur, a flying reptile that lived during the time of dinosaurs, but it is not a dinosaur itself.1

Kwiingcali zeedayinaso

Igama lenzululwazi: Cretornis
Inikwe igama ngu:: Fritsch 18813
Iqela: Izirhubuluzi ezibhabhayo
Usapho / iclade: Azhdarchoidea3
Ukuhlelwa: Pterosauria > Pterodactyloidea3
Ubudala bamatye: 94 ukuya ku-90 izigidi zeminyaka (Turonian)3
Izakhiwo zamatye: Jizera3
Amazwe: iCzechia3
Iirekhodi zeefosili: 1 kwi-Paleobiology Database3
Ukufunyanwa: Cretornis was named in 1881 by Czech paleontologist Antonín Frič. He first thought the bones were from a bird, but later scientists realized it was a pterosaur.1 3
Kusaxoxwa ngayo: Scientists still debate whether Cretornis was an azhdarchoid pterosaur or a nyctosaurid. Its exact place in the pterosaur family tree is not settled.1 2

Apho iinyani zivela khona

Cretornis (en.wikipedia.org)
Cretornis hlavaci Frič, 1881 from the Upper Cretaceous of Czech Republic (Pterosauria, Azhdarchoidea) - ScienceDirect (sciencedirect.com)
Cretornis in The Paleobiology Database (CC BY 4.0): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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